Horton

Re: Restore-reliability mode

Alvaro Herrera <alvherre@2ndquadrant.com>

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From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Peter Geoghegan <pg@heroku.com>
Cc: Noah Misch <noah@leadboat.com>, Simon Riggs <simon@2ndquadrant.com>, Bruce Momjian <bruce@momjian.us>, Andres Freund <andres@anarazel.de>, Robert Haas <robertmhaas@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>, Stephen Frost <sfrost@snowman.net>, Magnus Hagander <magnus@hagander.net>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>, pgsql-core <pgsql-core@postgresql.org>
Date: 2015-07-23T19:53:49Z
Lists: pgsql-hackers

Attachments

Peter Geoghegan wrote:
> On Sat, Jun 6, 2015 at 12:58 PM, Noah Misch <noah@leadboat.com> wrote:
> >   - Call VALGRIND_MAKE_MEM_NOACCESS() on a shared buffer when its local pin
> >     count falls to zero.  Under CLOBBER_FREED_MEMORY, wipe a shared buffer
> >     when its global pin count falls to zero.
> 
> Did a patch for this ever materialize?

I think the first part would be something like the attached.

-- 
Álvaro Herrera                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Commits

  1. Add Valgrind buffer access instrumentation.

  2. Fix wrong merge resolution making pg_receivexlog fail in 9.2.